Is this play too aggressive?

[RobGW]

I like the limp preflop knowing that you will get several callers and the SB will probaly go all in but why didn't you reraise at that point? Once villian bets half his stack you have to know he isnt going to fold, and you have about 14-15 outs which is almost a coin flip. Do you really want to do that? I would have reraised preflop and semi bluffed the flop.